diff --git a/.gitignore b/.gitignore
index 7729c1f..65dfd61 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,5 +14,5 @@ change_dir.o
 update_check.o
 man.o
 calc.o
-math.o
+math_ext.o
 your-reality.o
\ No newline at end of file
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diff --git a/math.o b/math.o
deleted file mode 100644
index 217e530..0000000
Binary files a/math.o and /dev/null differ
diff --git a/math_ext.o b/math_ext.o
deleted file mode 100644
index 62828c7..0000000
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